[rbridge] Use of 802.1ah Encaps

[Guillermo Ibáñez]

Attached is a  figure on the 802.1ad and .1ah headers, extracted from 
the Comms. Magazine. You can find also more details on the fields 
specific of .1ah header, extracted from 802.1ah draft 3.0
Note that I-SID Instance Service ID, has three octets, possibly to 
overcome the limitation that a single VLAN field (12 bit: 4096)  (2 byte 
type+ 2 byte VLAN tag)) would suppose.
Guillermo


Joe Touch escribió:
> Ali Sajassi (sajassi) wrote:
> ...
>   
>>>> Hmmm Trill spent 1.5 years coming up with a header that looks 
>>>> remarkably like 802.1ah. A fact many of us have pointed out 
>>>>         
>>> before.  
>>>       
>>>> If you are using an IEEE 802.1 Ethernet data plane your baseline 
>>>> choices are 802.1Q or 802.1ah.
>>>>         
>>> Is there a TTL in the 802.1ah header?
>>>       
>> Currently it is not. But if this is an issue, we can try to accommodate
>> it.
>>     
>
> So maybe that 1.5 years wasn't wasted after all? :-)
>
> Joe
>
>   
> ------------------------------------------------------------------------
>
> _______________________________________________
> rbridge mailing list
> rbridge at postel.org
> http://mailman.postel.org/mailman/listinfo/rbridge
>   
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 8021ah_header.pdf
Type: application/pdf
Size: 27594 bytes
Desc: not available
Url : http://mailman.postel.org/pipermail/rbridge/attachments/20061207/1723776f/8021ah_header-0001.pdf
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 8021ah.pdf
Type: application/pdf
Size: 119704 bytes
Desc: not available
Url : http://mailman.postel.org/pipermail/rbridge/attachments/20061207/1723776f/8021ah-0001.pdf